Cavitation air flotation machine used for sewage treatment and being able to segment bubbles

Abstract

The invention discloses a cavitation air flotation machine used for sewage treatment and being able to segment bubbles. The machine comprises an ultrasonic generator, an aeration device, a box body, a second motor, a hollow tube and dispersion impellers, the water inlet is arranged at the bottom of one end of the box body, the water outlet is arranged at the bottom of the other end of the box body, the position, close to the water inlet, in the box body is provided with an aeration chamber, the ultrasonic generator is arranged in the central position of the bottom of the aeration chamber, the aeration device penetrating through the aeration chamber is vertically arranged above the ultrasonic generator, the second motor is arranged at one end far from the aeration device and on the box body, the output end of the second motor is provided with a driving belt wheel, a driven belt wheel is arranged at one end of a rotating rod, chain wheels are arranged at two ends of the rotating rod, a chain is arranged between the chain wheels at two ends, and two mud scraper knives are arranged at the inner side of the chain. The inner walls of the dispersion impellers are provided with segmenting dispersion wing plates, so the volume of bubbles is effectively reduced, the quantity of the bubbles is increased, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a concave vortex air flotation machine for sewage treatment which can divide air bubbles. Background technique [0002] The concave vortex air flotation machine is an excellent sewage treatment technology with reasonable design, convenient operation and economical operation. It generates air bubbles from the air and directly removes suspended solids, grease, glued substances, etc. from the wastewater. It is used in the treatment of industrial wastewater. Therefore, the research and development of the new concave vortex air flotation machine has been paid more and more attention by researchers. [0003] The existing concave vortex air flotation machine has the problem that the air bubbles generated by the diffuser impeller are too large. The larger the bubbles, the shorter the time they stay in the water. However, the concave vortex air flotation machine needs a...

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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a vortex air flotation machine for sewage treatment with separable air bubbles, which can solve the existing problems of the existing vortex air flotation machine, such as too large bubbles, short retention time in water, poor mechanical performance, It is impossible to add lubricating oil for a long time, the wear is serious, the life is short, the particle sediment needs to be manually handled, and the work efficiency is low. It can realize the function of bubble segmentation, bubble transformation and automatic sediment cleaning of the concave vortex air flotation machine without manual operation. Large bubbles are divided into small bubbles, small bubbles stay in water for a long time, good mechanical performance, automatic lubricating oil, small wear and long life, automatic treatment of particle sediment and high work efficiency, etc.

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